Black Thunder

Black Thunder is an Extra Skill, an upgrade of Black Lightning.

Usage

 * Lightning Immunity
 * Thunder Strike [Consumes 1000 Magicule]: When activated, strike a ray of lightning in the range of 20 Blocks with higher damage than Black Lightning.

Obtaining

 * Using plundering/copying skills: There're some skills that have abilities to plunder/copy other players/mobs skills 
 * Obtaining both Black Lightning and Molecular Manipulation skills.